A sealing device for water channel repair

Abstract

A kind of sealing device for water channel maintenance, the sealing device for water channel maintenance includes water bag body, a water bag head, two water bag heads, a water bag nozzle, two water bag nozzles and equipment body;The left and right ends of the water bag body are provided with a water bag head and two water bag heads, a water bag head is connected with the one end of a water bag nozzle away from the one end of the water bag body, the one end of a water bag nozzle is connected with the one end of a steel pipe away from the one end of a water bag head, a liquid stop valve is installed on a steel pipe, liquid stop valve is connected with water pump, the one end of a water bag nozzle is installed with a lifting ring above the one end of a steel pipe away from a water bag head;The one end of the two water bag heads is connected with the one end of two water bag nozzles away from the water bag body, the one end of two water bag nozzles is connected with the one end of two steel pipes away from the one end of two water bag heads, and a gas stop valve is installed on two steel pipes.The contact pressure of the sealing element and the water channel can be adjusted, the sealing reliability is high, the amount of water injection and exhaust can be adjusted according to the pressure requirement of the sealing element and the water channel contact surface.

Description

Technical Field

[0001] This invention relates to an improvement in waterway maintenance technology, belonging to the field of sealing technology, and particularly to a sealing device for waterway maintenance. Background Technology

[0002] In large-scale equipment used in water conservancy projects, sealing is typically required between the equipment and the surface of the structure to prevent water leakage into the dry construction area, which could disrupt normal operations or even cause serious safety accidents. Currently, such equipment usually uses rubber sheets or strips for sealing. However, these methods present challenges, including difficulties in installation and replacement, friction between the seals and the water channel during installation (affecting seal lifespan), and the non-adjustable contact pressure between the seals and the water channel, resulting in low sealing reliability.

[0003] Chinese patent application CN202222456589.9, filed on September 16, 2022, discloses a drainage ditch slope maintenance tool, including two side baffles with inclined surfaces that contact the slope. A middle baffle is fixedly connected between the two side baffles. The slope, the middle baffle, and the two side baffles enclose a construction area for accommodating construction personnel. An inclined support frame for supporting construction personnel is provided at the bottom of the construction area. The inclined support frame is fixedly connected to the middle baffle and / or the side baffles. The top of the inclined support frame contacts the slope, which can resist the impact of water waves on construction personnel, providing stable and safe construction conditions, improving the safety of maintenance work, and reducing the difficulty of maintenance work. However, the prior art still does not solve the problem of the non-adjustable contact pressure between the seal and the ditch, resulting in low sealing reliability.

[0004] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this patent application and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Summary of the Invention

[0005] The purpose of this invention is to overcome the problems of the non-adjustable contact pressure between the seal and the water channel and the low sealing reliability in the prior art, and to provide a sealing device for water channel maintenance with adjustable contact pressure between the seal and the water channel and high sealing reliability.

[0006] To achieve the above objectives, the technical solution of the present invention is: a sealing device for water channel maintenance, the sealing device for water channel maintenance comprising a water bladder body, a water bladder head, a second water bladder head, a water bladder nozzle, a second water bladder nozzle, and a device body. The water bladder body is provided with a water bladder head and a second water bladder head at both the left and right ends. The end of the water bladder head away from the water bladder body is connected to the end of the water bladder nozzle. The end of the water bladder nozzle away from the water bladder head is connected to the end of a steel pipe. A liquid shut-off valve is installed on the steel pipe and is connected to a water pump. A lifting ring is installed above the steel pipe at the end of the water bladder nozzle away from the water bladder head. The end of the two water bladder heads away from the water bladder body is connected to one end of the two water bladder nozzles, and the end of the two water bladder nozzles away from the two water bladder heads is connected to one end of the two steel pipes. A gas shut-off valve is installed on the two steel pipes, and two lifting rings are installed above the two steel pipes at the end of the two water bladder nozzles away from the two water bladder heads. The device body is set on the water channel, and a rectangular groove is opened at the bottom of the device body. The water bag is set in the rectangular groove, and the contact surface between the water bag and the water channel is the surface of the water channel. A body of water is provided between the water bladder, the rectangular groove of the equipment, and the water channel surface.

[0007] The water bladder body, the first water bladder head, and the second water bladder head are made of rubber. The water bladder body, the first water bladder head, and the first water bladder nozzle are connected to each other, as are the water bladder body, the second water bladder head, and the second water bladder nozzle.

[0008] The water bladder head, when filled with water, becomes conical, and the diameter of the water bladder head decreases in the direction away from the water bladder body.

[0009] The water bladder is cylindrical after being filled with water, and the first and second water bladder nozzles are made of metal.

[0010] A liquid pressure gauge is installed on the steel pipe.

[0011] A gas pressure gauge is installed on the two steel pipes.

[0012] Liquid enters and exits at the end of the liquid shut-off valve furthest from the first steel pipe, while liquid exits at the end of the gas shut-off valve furthest from the second steel pipe.

[0013] A gap area is provided between the equipment body and the water channel surface, and the water flows into the rectangular groove of the equipment through the gap area.

[0014] A sealing contact surface is provided between the rectangular groove of the device and the top of the water bladder, and a second sealing contact surface and a third sealing contact surface are respectively provided between the rectangular groove of the device and the side of the water bladder.

[0015] The spacing between the three sealing contact surfaces is greater than the spacing between the two sealing contact surfaces, and there is a filling area between the three sealing contact surfaces and the inner wall of the rectangular groove of the equipment.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. In the sealing device for water channel maintenance of the present invention, a water bladder body is provided with a water bladder head and a second water bladder head at both ends. The end of one water bladder head away from the water bladder body is connected to the end of one water bladder nozzle. The end of one water bladder nozzle away from the water bladder head is connected to the end of one steel pipe. A liquid shut-off valve is installed on the steel pipe and is connected to a water pump. A lifting ring is installed above the steel pipe at the end of one water bladder nozzle away from the water bladder head. Then, the liquid shut-off valve and the gas shut-off valve on both sides of the water bladder body are opened to inject water and vent air. After venting is completed, the gas shut-off valve is closed and water is injected into the liquid shut-off valve on the other side. The water bladder body deforms under the weight of the water channel maintenance device and the pressure of the water in the water channel. The water bladder body fits tightly with the rectangular groove of the device and the surface of the water channel. The amount of water injection and venting can be adjusted according to the pressure requirements of the sealing element and the contact surface of the water channel. The tight fit between the water bladder body, the water channel and the rectangular groove of the device makes the whole device have a good sealing effect. Therefore, the contact pressure between the sealing element and the water channel is adjustable and the sealing reliability is high. Therefore, this design has a simple structure and the contact pressure between the seal and the water channel is adjustable.

[0017] 2. In this invention, a sealing device for water channel maintenance has a lifting ring installed at the end of the water bladder nozzle away from the water bladder head, located above the steel pipe. The water bladder body can be dragged into and out of the rectangular groove of the device via the lifting ring on the nozzle, making installation and replacement convenient. A pressure gauge is installed on the steel pipe, allowing for real-time monitoring and adjustment of the contact pressure between the water bladder body and the water channel, ensuring reliable sealing. Therefore, this design is easy to install and allows for real-time monitoring.

[0018] 3. In this invention, a sealing device for water channel maintenance comprises a water bladder body and a water bladder head made of rubber. The water bladder body, water bladder head, and water bladder nozzle are interconnected. The water bladder head, when filled with water, is conical, and its diameter decreases away from the water bladder body. The water bladder body, when filled with water, is cylindrical. The water bladder nozzle is made of metal, and the main body of the water bladder is made of rubber. The working medium is water, which is non-polluting to the water channel, environmentally adaptable, and prevents damage to the water channel due to excessive contact stress. Therefore, this design is pollution-free and safe to use. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the present invention.

[0020] Figure 2 This is a schematic diagram of the liquid shut-off valve in this invention.

[0021] Figure 3 This is a schematic diagram of the working state in this invention.

[0022] Figure 4 This is a schematic diagram of the gas shut-off valve in this invention.

[0023] In the diagram: 1. Water bladder body; 2. Water bladder head; 21. Water bladder head; 3. Water bladder nozzle; 31. Liquid shut-off valve; 4. Gas shut-off valve; 5. Liquid pressure gauge; 51. Gas pressure gauge; 6. Lifting ring; 61. Lifting ring; 7. Steel pipe; 71. Steel pipe; 8. Equipment body; 81. Rectangular groove of equipment; 9. Water body; 10. Sealing contact surface; 11. Water channel surface; 12. Sealing contact surface; 13. Sealing contact surface; 14. Water pump; 15. Filling area; 16. Water channel. Detailed Implementation

[0024] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] See Figures 1 to 4 A sealing device for water channel maintenance, the sealing device for water channel maintenance includes a water bladder body 1, a water bladder head 2, a second water bladder head 21, a water bladder nozzle 3, a second water bladder nozzle 31 and a device body 8. The water bladder body 1 is provided with a water bladder head 2 and a second water bladder head 21 at both the left and right ends. The end of the water bladder head 2 away from the water bladder body 1 is connected to one end of the water bladder nozzle 3. The end of the water bladder nozzle 3 away from the water bladder head 2 is connected to one end of the steel pipe 7. A liquid shut-off valve 4 is installed on the steel pipe 7. The liquid shut-off valve 4 is connected to the water pump 14. A hanging ring 6 is installed above the steel pipe 7 at the end of the water bladder nozzle 3 away from the water bladder head 2. The end of the two water bladder head 21 away from the water bladder body 1 is connected to one end of the two water bladder nozzle 31. The end of the two water bladder nozzle 31 away from the two water bladder head 21 is connected to one end of the two steel pipes 71. A gas shut-off valve 41 is installed on the two steel pipes 71. Two lifting rings 61 are installed above the two steel pipes 71 at the end of the two water bladder nozzle 31 away from the two water bladder head 21. The device body 8 is mounted on the water channel 16. A rectangular groove 81 is provided at the bottom of the device body 8. The water bag 1 is mounted in the rectangular groove 81. The contact surface between the water bag 1 and the water channel 16 is the water channel surface 11. A water body 9 is provided between the water bladder 1, the rectangular groove 81 of the equipment, and the water channel surface 11.

[0026] The water bladder body 1, the first water bladder head 2, and the second water bladder head 21 are made of rubber. The water bladder body 1, the first water bladder head 2, and the first water bladder nozzle 3 are connected to each other, and the water bladder body 1, the second water bladder head 21, and the second water bladder nozzle 31 are connected to each other.

[0027] The water bladder head 2 becomes conical after being filled with water, and the diameter of the water bladder head 2 decreases in the direction away from the water bladder body 1.

[0028] The water bladder 1 is cylindrical after being filled with water, and the first water bladder nozzle 3 and the second water bladder nozzle 31 are made of metal.

[0029] A liquid pressure gauge 5 is installed on the steel pipe 7.

[0030] A gas pressure gauge 51 is installed on the two steel pipes 71.

[0031] Liquid enters and exits at the end of the liquid shut-off valve 4 that is away from the first steel pipe 7, and liquid exits at the end of the gas shut-off valve 41 that is away from the second steel pipe 71.

[0032] A gap area 91 is provided between the equipment body 8 and the water channel surface 11, and the water body 9 flows into the rectangular groove 81 of the equipment through the gap area 91.

[0033] A sealing contact surface 10 is provided between the rectangular groove 81 of the device and the top of the water bag 1, and a second sealing contact surface 12 and a third sealing contact surface 13 are respectively provided between the rectangular groove 81 of the device and the side of the water bag 1.

[0034] The spacing between the three sealing contact surfaces 13 is greater than the spacing between the two sealing contact surfaces 12, and there is a filling area 15 between the three sealing contact surfaces 13 and the inner wall of the rectangular groove 81 of the equipment.

[0035] The principle of this invention is explained as follows: First, the water bladder 1 is placed in the rectangular groove 81 of the equipment. The liquid shut-off valve 4 of the water bladder 1 is connected to the water pump 14. Then, the liquid shut-off valve 4 and the gas shut-off valve 41 of the water bladder 1 are opened, and the water pump 14 is started. Water 9 flows into the water bladder 1 after passing through the liquid shut-off valve 4, a steel pipe 7, a water bladder nozzle 3, and a water bladder head 2 in sequence. At the same time, gas is discharged after passing through two water bladder heads 21, two water bladder nozzles 31, two steel pipes 71, and the gas shut-off valve 41 in sequence. After venting is completed, close the gas shut-off valve 41 and continue to inject water. The water bladder 1 deforms under the weight of the water channel maintenance equipment 8 and the pressure of the water. The water bladder 1 tightly fits the rectangular groove 81 of the equipment with the water channel surface 11. At this time, close the shut-off valve 4 at the water injection end to stop water injection and complete the sealing. When the contact stress exceeds the allowable value of the water channel 16, open the liquid shut-off valve 4 to drain the water, increase the contact area between the water bladder 1 and the water channel 16, reduce the contact pressure, and prevent the water channel 16 from being damaged due to excessive contact pressure.

[0036] Example 1: A sealing device for water channel maintenance includes a water bladder body 1, a water bladder head 2, a second water bladder head 21, a water bladder nozzle 3, a second water bladder nozzle 31, and a device body 8. The water bladder body 1 has a water bladder head 2 and a second water bladder head 21 at both its left and right ends. The end of the first water bladder head 2 away from the water bladder body 1 is connected to one end of the first water bladder nozzle 3. The end of the first water bladder nozzle 3 away from the first water bladder head 2 is connected to one end of a steel pipe 7. A liquid shut-off valve 4 is installed on the steel pipe 7 and connected to a water pump 14. A lifting ring 6 is installed above the steel pipe 7 at the end of the first water bladder nozzle 3 away from the first water bladder head 2. The end of the two water bladder heads 21 away from the water bladder body 1 is connected to one end of the two water bladder nozzles 31. The end of the two water bladder nozzles 31 away from the two water bladder heads 21 is connected to one end of the two steel pipes 71. A gas shut-off valve 41 is installed on the two steel pipes 71. Two lifting rings 61 are installed above the two steel pipes 71 at the end of the two water bladder nozzles 31 away from the two water bladder heads 21. The equipment body 8 is set on the water channel 16. A rectangular groove 81 is opened at the bottom of the equipment body 8. The water bladder body 1 is set in the rectangular groove 81. The contact surface between the water bladder body 1 and the water channel 16 is the water channel surface 11. Water 9 is arranged between the water bladder body 1, the rectangular groove 81, and the water channel surface 11.

[0037] In application: First, place the water bladder 1 in the rectangular groove 81 of the equipment. Connect the liquid shut-off valve 4 of the water bladder 1 to the water pump 14. Then, open the liquid shut-off valve 4 and the gas shut-off valve 41 of the water bladder 1, start the water pump 14, and let the water flow into the water bladder 1 through the liquid shut-off valve 4, a steel pipe 7, a water bladder nozzle 3 and a water bladder head 2 in sequence. At the same time, the gas passes through the two water bladder heads 21, two water bladder nozzles 31, two steel pipes 71 and the gas shut-off valve 41 on the other side in sequence to exhaust the gas. After the gas exhaust is completed, close the gas shut-off valve 41 and continue to inject water. The water bladder 1 deforms under the action of the weight of the equipment body 8 and the pressure of the water. The water bladder 1 tightly fits the rectangular groove 81 of the equipment and the water channel surface 11. At this time, close the shut-off valve 4 at the water injection end to stop the water injection and complete the sealing.

[0038] Example 2 Example 2 is basically the same as Example 1, except that: A sealing device for water channel maintenance, comprising a water bladder body 1, a first water bladder head 2, and a second water bladder head 21, all made of rubber; the water bladder body 1, the first water bladder head 2, and a first water bladder nozzle 3 are connected; the water bladder body 1, the second water bladder head 21, and the second water bladder nozzle 31 are also connected; the first water bladder head 2, when filled with water, is conical, and its diameter decreases in the direction away from the water bladder body 1; the water bladder body 1, when filled with water, is cylindrical; and the first water bladder nozzle 3 and the second water bladder nozzle 31 are made of metal; a steel pipe is also included. A liquid pressure gauge 5 is installed on the first steel pipe 7; a gas pressure gauge 51 is installed on the second steel pipe 71; liquid enters and exits at the end of the liquid shut-off valve 4 furthest from the first steel pipe 7, and liquid exits at the end of the gas shut-off valve 41 furthest from the second steel pipe 71; a gap area 91 is provided between the equipment body 8 and the water channel surface 11, the height of the gap area 91 is less than the maximum deformation of the water bladder 1, and water 9 flows into the rectangular groove 81 of the equipment through the gap area 91; the rectangular groove 81 of the equipment and the water bladder 1 A sealing contact surface 10 is provided between the top and bottom of the device. A second sealing contact surface 12 and a third sealing contact surface 13 are respectively provided between the rectangular groove 81 of the device and the side of the water bladder 1. The spacing of the third sealing contact surface 13 is greater than the spacing of the second sealing contact surface 12. There is a filling area 15 between the third sealing contact surface 13 and the inner wall of the rectangular groove 81 of the device. The liquid pressure gauge 5 and the gas pressure gauge 51 read the gas and liquid pressure. When the contact pressure reaches or exceeds the water pressure of the water channel 16, the water 9 in the water channel 16 can be prevented from leaking through the water bladder 1 and the rectangular groove 81 of the device and the water channel surface 11, thus achieving a seal. At this time, the liquid shut-off valve 4 is closed to stop water injection. The water injected into the water bladder 1 can be the water 9 in the water channel 16 or an external water source. When the contact stress exceeds the allowable value of the water channel 16, the liquid shut-off valve 4 is opened to drain water, increase the contact area between the water bladder 1 and the water channel 16, reduce the contact pressure, and prevent the water channel 16 from being damaged due to excessive contact pressure.

[0039] Example 3 Example 3 is basically the same as Example 1, except that: A sealing device for water channel maintenance includes a water bladder 1 that deforms under the weight of the maintenance equipment and the pressure of the water 9 in the water channel. The water bladder 1 then sequentially and tightly contacts a first sealing contact surface 10, a water channel surface 11, a second sealing contact surface 12, and a third sealing contact surface 13, ensuring that the contact pressure of the contact surfaces of the water bladder 1 is equal to the water pressure inside the water bladder 1. When the contact stress exceeds the allowable value of the water channel, the liquid shut-off valve 4 is opened to drain water, increasing the contact area between the water bladder 1 and the water channel 16, reducing the contact pressure, and preventing damage caused by excessive contact pressure in the water channel 16. When the contact pressure reaches or exceeds the water pressure in the water channel, it prevents the water 9 in the water channel from leaking through the water bladder 1, the rectangular groove 81 of the equipment, and the water channel surface 11. At this point, the shut-off valve 4 at the water injection end is closed to stop water injection and complete the sealing.

[0040] The above description is only a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. Any equivalent modifications or changes made by those skilled in the art based on the content disclosed in the present invention should be included within the scope of protection set forth in the claims.

Claims

1. A sealing device for waterway maintenance, characterized in that: The sealing device for water channel maintenance includes a water bladder body (1), a water bladder head (2), a second water bladder head (21), a water bladder nozzle (3), a second water bladder nozzle (31), and the device body (8). The water bladder body (1) is provided with a water bladder head (2) and a second water bladder head (21) at both the left and right ends. The end of the water bladder head (2) away from the water bladder body (1) is connected to the end of the water bladder nozzle (3). The end of the water bladder nozzle (3) away from the water bladder head (2) is connected to the end of the steel pipe (7). A liquid shut-off valve (4) is installed on the steel pipe (7). The liquid shut-off valve (4) is connected to the water pump (14). A hanging ring (6) is installed above the steel pipe (7) at the end of the water bladder nozzle (3) away from the water bladder head (2). The end of the two water bladder head (21) away from the water bladder body (1) is connected to one end of the two water bladder nozzle (31), and the end of the two water bladder nozzle (31) away from the two water bladder head (21) is connected to one end of the two steel pipes (71). A gas shut-off valve (41) is installed on the two steel pipes (71), and two lifting rings (61) are installed above the two steel pipes (71) at the end of the two water bladder nozzle (31) away from the two water bladder head (21). The device body (8) is set on the water channel (16). A rectangular groove (81) is opened at the bottom of the device body (8). The water bag (1) is set in the rectangular groove (81). The contact surface between the water bag (1) and the water channel (16) is the water channel surface (11). A water body (9) is provided between the water bag (1), the rectangular groove of the equipment (81), and the water channel surface (11); A liquid pressure gauge (5) is installed on the steel pipe (7); A gas pressure gauge (51) is installed on the two steel pipes (71); Liquid enters and exits at the end of the liquid shut-off valve (4) that is away from the first steel pipe (7), and liquid exits at the end of the gas shut-off valve (41) that is away from the second steel pipe (71). A gap area (91) is provided between the equipment body (8) and the water channel surface (11), and the water body (9) flows into the rectangular groove (81) of the equipment through the gap area (91); A sealing contact surface (10) is provided between the top of the rectangular groove (81) of the device and the water bag body (1), and a second sealing contact surface (12) and a third sealing contact surface (13) are respectively provided between the rectangular groove (81) of the device and the side of the water bag body (1). The spacing between the three sealing contact surfaces (13) is greater than the spacing between the two sealing contact surfaces (12), and there is a filling area (15) between the three sealing contact surfaces (13) and the inner wall of the rectangular groove (81) of the equipment. The above-mentioned sealing equipment for water canal maintenance is used in the following manner: First, place the water bladder (1) in the rectangular groove (81) of the equipment. Connect the liquid shut-off valve (4) of the water bladder (1) to the water pump (14). Then open the liquid shut-off valve (4) and gas shut-off valve (41) of the water bladder (1), start the water pump (14), and let the water flow into the water bladder (1) after passing through the liquid shut-off valve (4), a steel pipe (7), a water bladder nozzle (3) and a water bladder head (2) in sequence. At the same time, the gas passes through the two water bladder heads (21), two water bladder nozzles (31), two steel pipes (71) and gas shut-off valve (41) on the other side in sequence to exhaust the gas. After exhausting the gas, close the gas shut-off valve (41) and continue to inject water. The water bladder (1) deforms under the action of the weight of the equipment body (8) and the pressure of the water. The water bladder (1) tightly fits the rectangular groove (81) of the equipment and the water channel surface (11). At this time, close the liquid shut-off valve (4) at the water injection end, stop the water injection, and complete the sealing.

2. A sealing device for water channel maintenance according to claim 1, characterized in that: The water bladder body (1), the first water bladder head (2) and the second water bladder head (21) are made of rubber. The water bladder body (1), the first water bladder head (2) and the first water bladder nozzle (3) are connected to each other. The water bladder body (1), the second water bladder head (21) and the second water bladder nozzle (31) are connected to each other.

3. A sealing device for water channel maintenance according to claim 2, characterized in that: The water bladder head (2) becomes conical after being filled with water, and the diameter of the water bladder head (2) decreases in the direction away from the water bladder body (1).

4. A sealing device for water channel maintenance according to claim 2, characterized in that: The water bladder (1) is cylindrical after being filled with water, and the first water bladder nozzle (3) and the second water bladder nozzle (31) are made of metal.

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